Meghan O'Brien, MD, MBE
NPI 1245641539 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Meghan O'Brien, MD, MBE is a Internal Medicine Physician provider in San Francisco, CA (NPI 1245641539).
Provider details
- NPI number
- 1245641539
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MBE
- Sex
- Female
- Sole proprietor
- No
- License
- A140014 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
397 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 172 | $88 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 160 | $132 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 22 | $193 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 18 | $93 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 13 | $131 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-05-08
- Last updated
- 2024-12-25
- Certified
- 2024-12-25
Frequently asked questions
- What is Meghan O'Brien's NPI number?
- Meghan O'Brien's National Provider Identifier (NPI) is 1245641539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Meghan O'Brien's specialty?
- Meghan O'Brien is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Meghan O'Brien located?
- Meghan O'Brien's practice location on file with NPPES is 1001 Potrero Ave, San Francisco, CA 94110-3518.
- What is Meghan O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Meghan O'Brien is (628) 206-8000.
- Does Meghan O'Brien accept Medicare?
- Meghan O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Meghan O'Brien's NPI active?
- Yes — Meghan O'Brien's NPI (1245641539) is active in the NPPES registry as of the last update on 2024-12-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.